Search International and National Patent Collections
|1. (WO2018049844) METHOD FOR PREPARING GRAPHENE-COATED POWDER MATERIAL, AND PRODUCT OF METHOD|
|Applicants:||BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECHNOLOGY CO., LTD.
TUNGHSU GROUP CO., LTD.
|Title:||METHOD FOR PREPARING GRAPHENE-COATED POWDER MATERIAL, AND PRODUCT OF METHOD|
A method for preparing a graphene-coated powder material, said method comprising: A) dispersing a graphene powder and/or a graphene oxide powder, a powder material to be coated with graphene and a polymer co-coating agent in a first organic solvent to form a first organic solvent dispersion; B) mixing the first organic solvent dispersion with a second organic solvent, and separating a precipitate after sedimentation; C) performing annealing treatment on the precipitate in an inert atmosphere to obtain a graphene-coated powder material. The polymer co-coating agent can be dissolved in the first organic solvent, but not in the second organic solvent. The present invention also relates to a graphene-coated powder material prepared via the method.